Terminal 5, Heathrow Airport

Project: Heathrow Airport

Lytag® lightweight aggregate no-fines lightweight screed was used for Concourse A and B (main terminal building and satellite building) to minimise the weight loading for the internal floors. The area requiring screeding was in the region of 125,000 m².

The material used was Lytag® 4/8mm lightweight aggregate and the mixes were 6:1 and 8:1 LWA: cement. The lightweight nofines screed was laid at 65mm thick with a thin cement: sand topping to receive tiling.